Question

In which part of the human body are cells not replaced when they die?

Answer 1

Answer:

Kidneys - Most tissues including the skin and internal organs contain undifferentiated cells that can replace skin, muscle or other cells as they die. Other areas such as the kidneys lack these cells and lose cells through things like aging and drug abuse.

Explanation:

Answer 2

In nervous system, the neurones.

when neurones die they are not regenerated but their function is taken up by neuroglial cell.